Scott Disick Hospitalized -- Alcohol Poisoning Sends The Lord To The Hospital

Scott Disick drank so much one night last month ... he made a beeline for the hospital because his system was poisoned with booze.

Sources connected with Scott and the Kardashians tell TMZ ... Scott went to a nightclub in The Hamptons on June 22. He began binge drinking. We got a pic of him with a beer in his hand but it seems he drank the harder stuff too. We're told he was drunk out of his mind.

We're told Scott told the friends who were with him ... he was so messed up he felt someone had drugged him. So Scott -- who could barely put a sentence together -- went to the ER at Southampton Hospital.

We're told Scott was admitted and tested for drugs but doctors concluded it was classic alcohol poisoning.

The incident occurred days AFTER Kourtney threw Scott out of their Hamptons rental. And the very day Scott went to the hospital ... Kourtney bailed and took the kids to California, where they celebrated North West's birthday.